It might be the case that bluecove has problems with OSX 10.7I will try to reproduce the issue on OSX 10.7

You're using the jdk-7u4-macosx-x64.dmg as provided by oracle?Update: it seem Java 7 is only available in 64Bit. leJOS does not support 64Bit Java yet. Please install Java 6 and point LEJOS_NXT_JAVA_HOME to the root directory of the Java 6 JDK for the command line utilities to work. If you want to launch leJOS PC project from within Eclipse, you must provide "-d32" in the JVM argument of the run configuration and you must chose Java 6 as the execution environment in the run configuration.

skoehler wrote:It might be the case that bluecove has problems with OSX 10.7I will try to reproduce the issue on OSX 10.7

You're using the jdk-7u4-macosx-x64.dmg as provided by oracle?Update: it seem Java 7 is only available in 64Bit. leJOS does not support 64Bit Java yet. Please install Java 6 and point LEJOS_NXT_JAVA_HOME to the root directory of the Java 6 JDK for the command line utilities to work. If you want to launch leJOS PC project from within Eclipse, you must provide "-d32" in the JVM argument of the run configuration and you must chose Java 6 as the execution environment in the run configuration.

Yes, I am using the jdk-7u4-macosx-x64.dmg by oracle. It is in 64Bit... Ok I will install another 32Bit version 6.